Transcript provided by a very kind Redditor: https://docs.google.com/document/d/1lPyDebr_vS9eZKPw0J440SYIwV-sXFXyp-Vsi0-DLQc/view.
To learn more about the story go to http://cesletter.org/resign
[DISCLAIMER: I am NOT Jeremy Runnells and I don't think he'll release this video himself. I am leaking it because it belongs in the public domain and the Mormon church needs to have a light pointed at them so people who question or doubt the church's truth claims aren't private ridiculed like this. This video is posted for educational purposes. If you don't like it, don't watch it. Any complaints, comments or questions can be submitted in the comments section.]
Jeremy Runnells, author of the Letter to a CES Director (also known as CES Letter) was summoned to a church court in his home stake in American Fork, Utah by his Stake President (President Mark Ivins).
After not being able to get the Stake President to answer simple questions or even give a full definition of 'apostasy' as defined in the church handbook of instructions when directly asked several times, Jeremy realized the result of what he deemed a "kangaroo court" was not out to give him answers but rather appease higher ups, so Jeremy 'excommunicated' the LDS church by preemptively resigning.
To learn more about what the questions Jeremy asked, read his letter at www.cesletter.com/resign and do yourself a favor and see the anti-Mormon material directly at the Church of Jesus Christ of Latter-day Saints own website, https://www.lds.org/topics/essays.